JPS6332519Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a support structure for an adjusting screw for optical axis adjustment in an automobile headlamp. The present invention relates to an improvement in a support structure that maintains the structure.

This kind of support structure is disclosed in Japanese Patent Application Laid-Open No. 49-50780, Japanese Utility Model Application Publication No. 55-142345 and Japanese Utility Model Application Publication No. 56-100804 filed by the applicant, etc., but these conventional support structures At present, it is difficult to support the recent headlights, which have become larger and heavier, in a stable and firm manner, and we are currently struggling to find a solution.

In view of the current situation, the present invention allows even larger and heavier headlights to securely hold the head of the adjusting screw, and also allows the adjustment screw or spherical receiver to be firmly held during and after adjusting the optical axis. To provide a support structure for an adjusting screw in an automobile headlamp, which can stably support the seat without rattling and can be manufactured and assembled easily and inexpensively with a small number of parts.

An example of implementing the present invention will be described below based on the drawings.

The adjuster screw 1 has a head 1' formed in a spherical shape as in the conventional case, and an engagement groove 3 for engaging the driver tool 2 when adjusting the optical axis is formed on the upper surface of the head 1'. The head 1' of the adjusting screw 1 is rotatably fitted into and supported by the spherical seat 4.

The spherical catch 4 is made of synthetic resin and the right half catch 4a
and a left half seat 4b, and elastic bulging pieces 5a, 5b are formed on the outside of the left and right half seats 4a, 4b. 5a and 5b are simultaneously molded into the same body by a mold.

The right half catch seat 4a and the left half catch seat 4b are arranged so that their palms are joined together to form one spherical catch seat 4, and are molded into a single body through a connecting piece 6, and the left and right joints are connected to each other. Guide protrusions 8a and 8b are provided on the upper and lower sides of the surfaces 4'a and 4'b to provide reinforcement and prevent incorrect attachment when the lamp is attached to the bracket 7 on the side of the lamp body A. Elastic bulging pieces 5a and 5b are formed as the same body on the outside. In addition, 9a and 9b in the figure are an engagement hole and an engagement protrusion that engage with each other.

The elastic bulging pieces 5a and 5b are used to prevent the spherical catch 4 from wobbling and firmly support the adjuster screw 1 when the spherical catch 4 is attached to the bracket 7 on the side of the lamp body A. The left and right half seats 4a, 4b are formed into a flat shape having a width approximately the same as the height h of the left and right half seats 4a, 4b constituting the spherical strike seat 4.
The left and right half receiving seats 4a, 4b are formed in a bulging form along the outer side thereof at an appropriate interval of 10. still,
Elastic bulging pieces 5a and 5b formed into this planar shape
, one rising edge (in the illustrated example, the rising edge on the connecting piece 6 side) 5'a, 5'b is connected to the left and right half seats 4a, 4.
Separated from b and sides 5'a and 5'b on the separated side
The sides are made to protrude slightly h' from the upper or lower end surfaces (in the illustrated example, the upper end surfaces) of the left and right half seats 4a, 4b.

Then, the right half catch 4a and the left half catch 4b, which constitute the spherical catch 4, fit and enclose the head 1' of the adjusting screw 1, and the spherical catch 4 is attached to the lamp body. It is installed in a box-shaped bracket 7 protruding from the A side, and the adjusting screw 1 is screwed and connected to a self-locking nut 11 attached to the housing B side.

The bracket 7 is formed into a box shape consisting of four surrounding walls 7a, 7b, 7c, and 7d, which have approximately the same height as the height h of the spherical seat 4 and a width slightly narrower than the width l including the elastic bulging pieces 5a and 5b. The upper and lower walls 7a, 7
A cut groove 12 for guiding the guide protrusions 8a, 8b of the spherical seat 4 is formed in b. This cut groove 12
also serves to penetrate the adjuster screw 1 and insert the driver tool 2.

Therefore, the spherical seat 4 that fits and holds the head 1' of the adjuster screw 1 is inserted into the box-shaped bracket 7, and the guide protrusions 8a and 8b are inserted into the cut groove 12 from the opening 13 on the opposite side of the lamp body A. When engaged and inserted, the upper and lower end surfaces of the spherical catch 4 come into contact with the inner surfaces of the upper and lower walls 7a and 7b of the box-shaped bracket 7, and the elastic bulging pieces 5a and 5b touch the left and right walls 7c and 7b of the box-shaped bracket 7, respectively.
7d comes into contact with the inner surface of the adjuster screw 1, firmly supporting the head 1' of the adjuster screw 1, and supporting the spherical catch 4 without wobbling.

FIGS. 6 to 8 show the structure of the fixed fulcrum part for adjusting the optical axis. Insert the pivot 14 provided on the housing B side into the support seat 15 attached to the lamp body A side, and then tighten the screw 16. It is designed to be tightened with. That is, the support seat 15 is formed into a planar shape,
A seat 15a that supports the pivot 14 is formed on the opposite side of the open part 17, a screw 16 is attached to the open part 17, the pivot 14 is inserted into the seat 15a, and then the screw 16 is tightened. It is designed to prevent it from coming off.

In this way, the present invention consists of a right half catch and a left half catch, and a spherical catch that fits and holds the head of the adjusting screw formed in a spherical shape, and the outside of the left and right half catches. An elastic bulge is formed on the bulge, and the spherical catch is mounted inside a box-shaped bracket protruding from the lamp body, so that the head of the adjusting screw can be attached to the right half of the catch and the left half of the catch. When the spherical catch is fitted and held by the seat and inserted into the box-shaped bracket from its open part, the upper and lower end surfaces of the spherical catch will come into contact with the inner surfaces of the upper and lower walls of the box-shaped bracket, and the elastic bulging piece will press against the inner surface of the box-shaped bracket. It comes into contact with the inner surface of the left and right walls, and can firmly hold the head of the adjusting screw even in large and heavy headlights, and can also be used to securely hold the adjusting screw or spherical catch during and after adjusting the optical axis. This allows for stable support without shaking.

Moreover, the spherical catch, including the elastic bulging piece, can be molded into the same body at the same time using a mold, and since the spherical catch can be simply pushed and inserted into the box-shaped bracket protruding from the lamp body, even a small number of parts can be used. It can be easily and inexpensively manufactured and assembled without using tools.

Therefore, the intended purpose can be achieved.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention; FIG. 1 is a plan view, FIG. 2 is a sectional view taken along line 2-2 in FIG. 1, FIG. 3 is an enlarged sectional view taken along line 3-3 in FIG. The figure is a perspective view of the spherical catch, Fig. 5 is an expanded rear view of the spherical catch, and Fig. 6 is a perspective view of the spherical catch.
The figure is a sectional view showing the support structure of the fixed fulcrum part.
The figure is a side view of the same, and FIG. 8 is a plan view of the same. In the figure, 1 is the adjustment screw, 1' is the head,
4 is a spherical catch, 4a is a right half catch, 4b is a left half catch, 5a and 5b are elastic bulges, 7 is a box-shaped bracket, A is a lamp body, and B is a housing.

Claims (1)

[Scope of utility model registration request] A spherical catch that fits and holds the head of the adjuster screw formed in a spherical shape is composed of a right half catch and a left half catch, and an elastic bulging piece is expanded on the outside of the left and right half seats. A support structure for an adjusting screw in a headlamp for an automobile, characterized in that the spherical catch is mounted in a box-shaped bracket that projects from the side of a lamp body.